Improvement in machine-banding



UNITED STATES CHARLES LENZMANN, OF

PATENT OFFICE.

BROOKLYN, NEW YORK.

IMPROVEMENT IN MACHINE-BANDING.

Specification forming part of Letters Patent No. 18,753. dated December1, 1857.

To all whom it may concern:

Be it known that I, CHARLES LENZMANN, of the city ot'Brooklyn, county ofKings, State of New York, have invented a new and useful article ofmanufacture to be used for the purpose of transmitting power tomachinery in place of leather and other machine bands, the use andpurposes of which are well known to mechanics.

My band possesses the firmness and solidity in the line ot'its width,together with the plia' bility in the line ofits length, heretoforepeculiar to leather banding, and has, besides, the advantage of beingunaffected by the moisture of the atmosphere or the heat of the room,or, as in case ofindia-rubber banding, by the oil and other grease fromthe machinery and shafting driven by it. It is. peculiarly adapted forrunning machinery in places where steam is escaping or where, from othercauses, a great degree of heat and moisture is present. It is also welladapted for running machinery in the open air. These desirable qualitiesare attained in my banding by impregnating and covering with acomposition (of which linseedoil anl cement, together with a slow drier,form the principal ingredients) a single \veb woven of any suitablefibrous materials in a manner peculiar in these respects, viz: First,that it shall bewoven ot' the width of the desired band; second, thatthe filling shall be covered by the warpthreads; third, that the fillingshall beof threads of greater diameter than the warpthreads, and may beof coarser material. This isfor the purpose of giving stifi'ncss to theband in the line ofits width.

The fibrous material which I prefer to use is hemp; but for light powercotton or combinations of any fibrous materials may be used.

The composition which I prefer to use for impregnating the web and themode of application are as follows, viz: To, say, ten pounds oflinseedoil add eight pounds of Roman cement,

pulverized, one pound umber, one pound litharge, two pounds of greasyclay, and mix well together when cold, and apply slightly heated (addingas much linseed-oilasis required to keep the composition in aliquidstate) with a stiff brush to the web. When well soaked into the fibersand threads of the web and dry apply the composition again until aproper surface is obtained.

The composition above stated may be varied by substituting other similarpigments to form the body of the composition \vithontessentiallychanging its character of pliability when dry, which is the result ofthe presence of the linseed-oil qualified by the drier. The threads ofthe web are prevented from weariugor rubbing each other by thecomposition, which fills up the interstices between them and impartssolidity to the combined fabric, and they are also protected from thewear of the pulley by the covering, which at the same time, under itspressure, becomes very smooth, thus affording a much greater extent ofsurfacecontact than would take place were the interstices not filled. My band also possesses the advantage of combining great strength anddurability with comparatively small cost ofmanufacture.

Having described my invention, I will now proceed to state what Iclailnas my invention and desire to secure by Letters Patent of the UnitedStates.

I do not claim the web or the composition separately. Neither do Iclaim, broadly, saturating webs woven from fibrous materials with thecomposition above described; but

I do claim- As a new manufacture, the machine-banding substantially asherein before described.

CHARLES LENZMANN.

Witnesses:

F. O. TREADWELL, J r., E. FRANCIS COREY, Jun.

